LCK PLUG 30AMP/3/PL125/250/3W

LCK PLUG 30AMP / 3P / 125-250V / 3W (Product Description)

A 30-amp, 125/250-volt locking plug (LCK plug) designed for industrial and generator-style power connections, commonly used in temporary power systems and heavy-duty electrical equipment.

Product Description

This is a 30A twist-lock (locking) male plug, typically part of a NEMA L14-30P style configuration, used in 3-pole, 4-wire (3P4W) electrical systems. It is designed to connect to matching locking receptacles in 120/240V split-phase power systems.

The plug provides a secure mechanical twist-lock connection, preventing accidental disconnection in high-vibration or outdoor environments such as:

• generators
• construction sites
• RV power systems
• temporary power distribution panels

The “125/250V” rating indicates it can support both 120V loads (line-to-neutral) and 240V loads (line-to-line) depending on wiring configuration.

Key Specifications

• Amperage: 30A
• Voltage: 125/250V AC
• Configuration: 3-pole, 4-wire (3P4W)
• Type: Locking plug (male cable end)
• NEMA Style (typical): L14-30P
• Grounding: Yes (grounded system)
• Application: Residential, commercial, and industrial power

Key Features

• Twist-lock design prevents accidental unplugging
• Supports dual-voltage operation (120/240V systems)
• Heavy-duty thermoplastic or nylon housing
• Screw-terminal wiring for secure cable connection
• Rated for continuous-duty generator and equipment use
• Compatible with standard L14-30R receptacles

Typical Applications

• Portable generators
• Transfer switches and inlet boxes
• RV and trailer power systems
• Construction site temporary power
• Industrial tools and equipment requiring 30A service